15506461632 has 56 divisors (see below), whose sum is σ = 42811330176. Its totient is φ = 4944087808.

The previous prime is 15506461627. The next prime is 15506461639. The reversal of 15506461632 is 23616460551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15506461639) 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, 1751298 + ... + 1760129.

Almost surely, 2^15506461632 is an apocalyptic number.

15506461632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15506461632 is an abundant number, since it is smaller than the sum of its proper divisors (27304868544).

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

15506461632 is a wasteful number, since it uses less digits than its factorization.

15506461632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3511465 (or 3511455 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The spelling of 15506461632 in words is "fifteen billion, five hundred six million, four hundred sixty-one thousand, six hundred thirty-two".