72545337505016 has 16 divisors (see below), whose sum is σ = 136025040833640. Its totient is φ = 36271993282720.

The previous prime is 72545337505009. The next prime is 72545337505093. The reversal of 72545337505016 is 61050573354527.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83977130 + ... + 84836601.

Almost surely, 2^{72545337505016} is an apocalyptic number.

It is an amenable number.

72545337505016 is a deficient number, since it is larger than the sum of its proper divisors (63479703328624).

72545337505016 is a wasteful number, since it uses less digits than its factorization.

72545337505016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168867454 (or 168867450 counting only the distinct ones).

The product of its (nonzero) digits is 13230000, while the sum is 53.

The spelling of 72545337505016 in words is "seventy-two trillion, five hundred forty-five billion, three hundred thirty-seven million, five hundred five thousand, sixteen".