72215566510 has 16 divisors (see below), whose sum is σ = 136829494800. Its totient is φ = 27365898816.

The previous prime is 72215566481. The next prime is 72215566513. The reversal of 72215566510 is 1566551227.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72215566513) 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, 190040775 + ... + 190041154.

It is an arithmetic number, because the mean of its divisors is an integer number (8551843425).

Almost surely, 2^72215566510 is an apocalyptic number.

72215566510 is a deficient number, since it is larger than the sum of its proper divisors (64613928290).

72215566510 is a wasteful number, since it uses less digits than its factorization.

72215566510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380081955.

The product of its (nonzero) digits is 126000, while the sum is 40.

The spelling of 72215566510 in words is "seventy-two billion, two hundred fifteen million, five hundred sixty-six thousand, five hundred ten".