72055305722672 has 10 divisors (see below), whose sum is σ = 139607154837708. Its totient is φ = 36027652861328.

The previous prime is 72055305722669. The next prime is 72055305722677. The reversal of 72055305722672 is 27622750355027.

It is not an unprimeable number, because it can be changed into a prime (72055305722677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2251728303818 + ... + 2251728303849.

Almost surely, 2^{72055305722672} is an apocalyptic number.

It is an amenable number.

72055305722672 is a deficient number, since it is larger than the sum of its proper divisors (67551849115036).

72055305722672 is a wasteful number, since it uses less digits than its factorization.

72055305722672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4503456607675 (or 4503456607669 counting only the distinct ones).

The product of its (nonzero) digits is 12348000, while the sum is 53.

The spelling of 72055305722672 in words is "seventy-two trillion, fifty-five billion, three hundred five million, seven hundred twenty-two thousand, six hundred seventy-two".