72311265570220 has 96 divisors (see below), whose sum is σ = 153473074513920. Its totient is φ = 28617361274880.

The previous prime is 72311265570121. The next prime is 72311265570319. The reversal of 72311265570220 is 2207556211327.

It is an interprime number because it is at equal distance from previous prime (72311265570121) and next prime (72311265570319).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3055092546 + ... + 3055116214.

It is an arithmetic number, because the mean of its divisors is an integer number (1598677859520).

Almost surely, 2^{72311265570220} is an apocalyptic number.

It is an amenable number.

72311265570220 is an abundant number, since it is smaller than the sum of its proper divisors (81161808943700).

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

72311265570220 is a wasteful number, since it uses less digits than its factorization.

72311265570220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27083 (or 27081 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 43.

The spelling of 72311265570220 in words is "seventy-two trillion, three hundred eleven billion, two hundred sixty-five million, five hundred seventy thousand, two hundred twenty".