215053072616020 has 72 divisors (see below), whose sum is σ = 460603226216952. Its totient is φ = 84340713000960.

The previous prime is 215053072616017. The next prime is 215053072616021. The reversal of 215053072616020 is 20616270350512.

It can be written as a sum of positive squares in 12 ways, for example, as 213399857836944 + 1653214779076 = 14608212^2 + 1285774^2 .

It is a super-3 number, since 3×215053072616020³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215053072616021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18677292 + ... + 27909628.

It is an arithmetic number, because the mean of its divisors is an integer number (6397267030791).

Almost surely, 2^{215053072616020} is an apocalyptic number.

215053072616020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215053072616020 is an abundant number, since it is smaller than the sum of its proper divisors (245550153600932).

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

215053072616020 is a wasteful number, since it uses less digits than its factorization.

215053072616020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9232781 (or 9232718 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 215053072616020 in words is "two hundred fifteen trillion, fifty-three billion, seventy-two million, six hundred sixteen thousand, twenty".