15452045353440 has 432 divisors, whose sum is σ = 56064655050768. Its totient is φ = 3874676539392.

The previous prime is 15452045353421. The next prime is 15452045353441. The reversal of 15452045353440 is 4435354025451.

15452045353440 is a `hidden beast` number, since 1 + 5 + 4 + 5 + 20 + 4 + 53 + 534 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15452045353441) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 479816379 + ... + 479848581.

It is an arithmetic number, because the mean of its divisors is an integer number (129779294099).

Almost surely, 2^{15452045353440} is an apocalyptic number.

15452045353440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15452045353440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28032327525384).

15452045353440 is an abundant number, since it is smaller than the sum of its proper divisors (40612609697328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15452045353440 is a wasteful number, since it uses less digits than its factorization.

15452045353440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33411 (or 33383 counting only the distinct ones).

The product of its (nonzero) digits is 2880000, while the sum is 45.

Adding to 15452045353440 its reverse (4435354025451), we get a palindrome (19887399378891).

The spelling of 15452045353440 in words is "fifteen trillion, four hundred fifty-two billion, forty-five million, three hundred fifty-three thousand, four hundred forty".