15609272080 has 40 divisors (see below), whose sum is σ = 36351459072. Its totient is φ = 6233403264.

The previous prime is 15609272009. The next prime is 15609272083. The reversal of 15609272080 is 8027290651.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (15609272083) 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, 112162 + ... + 209281.

Almost surely, 2^15609272080 is an apocalyptic number.

15609272080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15609272080 is an abundant number, since it is smaller than the sum of its proper divisors (20742186992).

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

15609272080 is a wasteful number, since it uses less digits than its factorization.

15609272080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322063 (or 322057 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 15609272080 in words is "fifteen billion, six hundred nine million, two hundred seventy-two thousand, eighty".