15403000620672 has 384 divisors, whose sum is σ = 50846095872000. Its totient is φ = 4384341706752.

The previous prime is 15403000620661. The next prime is 15403000620691. The reversal of 15403000620672 is 27602600030451.

15403000620672 is a `hidden beast` number, since 1 + 540 + 30 + 0 + 0 + 6 + 20 + 67 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4119548979 + ... + 4119552717.

It is an arithmetic number, because the mean of its divisors is an integer number (132411708000).

Almost surely, 2^{15403000620672} is an apocalyptic number.

15403000620672 is a gapful number since it is divisible by the number (12) 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 15403000620672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25423047936000).

15403000620672 is an abundant number, since it is smaller than the sum of its proper divisors (35443095251328).

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

15403000620672 is a wasteful number, since it uses less digits than its factorization.

15403000620672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5548 (or 5533 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The spelling of 15403000620672 in words is "fifteen trillion, four hundred three billion, six hundred twenty thousand, six hundred seventy-two".