72708053166 has 160 divisors (see below), whose sum is σ = 191807225280. Its totient is φ = 20150913024.

The previous prime is 72708053153. The next prime is 72708053207. The reversal of 72708053166 is 66135080727.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 14808720 + ... + 14813628.

It is an arithmetic number, because the mean of its divisors is an integer number (1198795158).

Almost surely, 2^72708053166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72708053166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95903612640).

72708053166 is an abundant number, since it is smaller than the sum of its proper divisors (119099172114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72708053166 is a wasteful number, since it uses less digits than its factorization.

72708053166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5320 (or 5311 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The spelling of 72708053166 in words is "seventy-two billion, seven hundred eight million, fifty-three thousand, one hundred sixty-six".