72776356045366 has 16 divisors (see below), whose sum is σ = 109620301009824. Its totient is φ = 36236358468544.

The previous prime is 72776356045363. The next prime is 72776356045373. The reversal of 72776356045366 is 66354065367727.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72776356045363) 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, 24271951 + ... + 27104986.

It is an arithmetic number, because the mean of its divisors is an integer number (6851268813114).

Almost surely, 2^{72776356045366} is an apocalyptic number.

72776356045366 is a deficient number, since it is larger than the sum of its proper divisors (36843944964458).

72776356045366 is a wasteful number, since it uses less digits than its factorization.

72776356045366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51379895.

The product of its (nonzero) digits is 800150400, while the sum is 67.

The spelling of 72776356045366 in words is "seventy-two trillion, seven hundred seventy-six billion, three hundred fifty-six million, forty-five thousand, three hundred sixty-six".