72220654377064 has 32 divisors (see below), whose sum is σ = 136560393815040. Its totient is φ = 35805765179200.

The previous prime is 72220654377041. The next prime is 72220654377089. The reversal of 72220654377064 is 46077345602227.

It is a junction number, because it is equal to n+sod(n) for n = 72220654376996 and 72220654377014.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75513259 + ... + 76463674.

It is an arithmetic number, because the mean of its divisors is an integer number (4267512306720).

Almost surely, 2^{72220654377064} is an apocalyptic number.

It is an amenable number.

72220654377064 is a deficient number, since it is larger than the sum of its proper divisors (64339739437976).

72220654377064 is a wasteful number, since it uses less digits than its factorization.

72220654377064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151977441 (or 151977437 counting only the distinct ones).

The product of its (nonzero) digits is 23708160, while the sum is 55.

The spelling of 72220654377064 in words is "seventy-two trillion, two hundred twenty billion, six hundred fifty-four million, three hundred seventy-seven thousand, sixty-four".