72266696552 has 16 divisors (see below), whose sum is σ = 135513931200. Its totient is φ = 36129648240.

The previous prime is 72266696543. The next prime is 72266696561. The reversal of 72266696552 is 25569666227.

It is an interprime number because it is at equal distance from previous prime (72266696543) and next prime (72266696561).

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, 378602 + ... + 536537.

It is an arithmetic number, because the mean of its divisors is an integer number (8469620700).

Almost surely, 2^72266696552 is an apocalyptic number.

It is an amenable number.

72266696552 is a deficient number, since it is larger than the sum of its proper divisors (63247234648).

72266696552 is a wasteful number, since it uses less digits than its factorization.

72266696552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925016 (or 925012 counting only the distinct ones).

The product of its digits is 16329600, while the sum is 56.

The spelling of 72266696552 in words is "seventy-two billion, two hundred sixty-six million, six hundred ninety-six thousand, five hundred fifty-two".