72663476390160 has 80 divisors (see below), whose sum is σ = 232523124472320. Its totient is φ = 18751864872960.

The previous prime is 72663476390159. The next prime is 72663476390221. The reversal of 72663476390160 is 6109367436627.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×72663476390160² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 72663476390094 and 72663476390103.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4883290705 + ... + 4883305584.

It is an arithmetic number, because the mean of its divisors is an integer number (2906539055904).

Almost surely, 2^{72663476390160} is an apocalyptic number.

It is an amenable number.

72663476390160 is an abundant number, since it is smaller than the sum of its proper divisors (159859648082160).

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

72663476390160 is a wasteful number, since it uses less digits than its factorization.

72663476390160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9766596336 (or 9766596330 counting only the distinct ones).

The product of its (nonzero) digits is 41150592, while the sum is 60.

The spelling of 72663476390160 in words is "seventy-two trillion, six hundred sixty-three billion, four hundred seventy-six million, three hundred ninety thousand, one hundred sixty".