15453161540 has 24 divisors (see below), whose sum is σ = 32478052992. Its totient is φ = 6176233440.

The previous prime is 15453161461. The next prime is 15453161543. The reversal of 15453161540 is 4516135451.

It is a self number, because there is not a number n which added to its sum of digits gives 15453161540.

It is not an unprimeable number, because it can be changed into a prime (15453161543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289214 + ... + 338453.

It is an arithmetic number, because the mean of its divisors is an integer number (1353252208).

Almost surely, 2^15453161540 is an apocalyptic number.

15453161540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15453161540 is an abundant number, since it is smaller than the sum of its proper divisors (17024891452).

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

15453161540 is a wasteful number, since it uses less digits than its factorization.

15453161540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628907 (or 628905 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 35.

Adding to 15453161540 its reverse (4516135451), we get a palindrome (19969296991).

The spelling of 15453161540 in words is "fifteen billion, four hundred fifty-three million, one hundred sixty-one thousand, five hundred forty".