72153114776554 has 16 divisors (see below), whose sum is σ = 123691212211968. Its totient is φ = 30922723898352.

The previous prime is 72153114776539. The next prime is 72153114776557. The reversal of 72153114776554 is 45567741135127.

It is a super-2 number, since 2×72153114776554² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72153114776557) 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, 9834207 + ... + 15524749.

It is an arithmetic number, because the mean of its divisors is an integer number (7730700763248).

Almost surely, 2^{72153114776554} is an apocalyptic number.

72153114776554 is a deficient number, since it is larger than the sum of its proper divisors (51538097435414).

72153114776554 is a wasteful number, since it uses less digits than its factorization.

72153114776554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6596229.

The product of its digits is 24696000, while the sum is 58.

The spelling of 72153114776554 in words is "seventy-two trillion, one hundred fifty-three billion, one hundred fourteen million, seven hundred seventy-six thousand, five hundred fifty-four".