72206516 has 24 divisors (see below), whose sum is σ = 128222976. Its totient is φ = 35575200.

The previous prime is 72206513. The next prime is 72206527. The reversal of 72206516 is 61560227.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72206513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148025 + ... + 148511.

It is an arithmetic number, because the mean of its divisors is an integer number (5342624).

Almost surely, 2^72206516 is an apocalyptic number.

It is an amenable number.

72206516 is a deficient number, since it is larger than the sum of its proper divisors (56016460).

72206516 is a wasteful number, since it uses less digits than its factorization.

72206516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959 (or 957 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 72206516 is about 8497.4417326628. The cubic root of 72206516 is about 416.4141354759.

The spelling of 72206516 in words is "seventy-two million, two hundred six thousand, five hundred sixteen".