15435681996 has 48 divisors (see below), whose sum is σ = 41187605760. Its totient is φ = 4407432000.

The previous prime is 15435681983. The next prime is 15435681997. The reversal of 15435681996 is 69918653451.

It is not an unprimeable number, because it can be changed into a prime (15435681997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79246 + ... + 192746.

It is an arithmetic number, because the mean of its divisors is an integer number (858075120).

Almost surely, 2^15435681996 is an apocalyptic number.

It is an amenable number.

15435681996 is an abundant number, since it is smaller than the sum of its proper divisors (25751923764).

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

15435681996 is a wasteful number, since it uses less digits than its factorization.

15435681996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115134 (or 115132 counting only the distinct ones).

The product of its digits is 6998400, while the sum is 57.

The spelling of 15435681996 in words is "fifteen billion, four hundred thirty-five million, six hundred eighty-one thousand, nine hundred ninety-six".