72546736766 has 16 divisors (see below), whose sum is σ = 124510634880. Its totient is φ = 31055258520.

The previous prime is 72546736747. The next prime is 72546736771. The reversal of 72546736766 is 66763764527.

It is a super-2 number, since 2×72546736766² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 3004220 + ... + 3028271.

It is an arithmetic number, because the mean of its divisors is an integer number (7781914680).

Almost surely, 2^72546736766 is an apocalyptic number.

72546736766 is a deficient number, since it is larger than the sum of its proper divisors (51963898114).

72546736766 is a wasteful number, since it uses less digits than its factorization.

72546736766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6033359.

The product of its digits is 53343360, while the sum is 59.

The spelling of 72546736766 in words is "seventy-two billion, five hundred forty-six million, seven hundred thirty-six thousand, seven hundred sixty-six".