72012546655 has 16 divisors (see below), whose sum is σ = 98787617280. Its totient is φ = 49366255392.

The previous prime is 72012546649. The next prime is 72012546677. The reversal of 72012546655 is 55664521027.

It is a cyclic number.

It is not a de Polignac number, because 72012546655 - 2²³ = 72004158047 is a prime.

It is a congruent number.

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, 158965 + ... + 411454.

It is an arithmetic number, because the mean of its divisors is an integer number (6174226080).

Almost surely, 2^72012546655 is an apocalyptic number.

72012546655 is a deficient number, since it is larger than the sum of its proper divisors (26775070625).

72012546655 is a wasteful number, since it uses less digits than its factorization.

72012546655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574038.

The product of its (nonzero) digits is 504000, while the sum is 43.

The spelling of 72012546655 in words is "seventy-two billion, twelve million, five hundred forty-six thousand, six hundred fifty-five".