215036520874464 has 192 divisors, whose sum is σ = 590723705549376. Its totient is φ = 68418904080384.

The previous prime is 215036520874429. The next prime is 215036520874499. The reversal of 215036520874464 is 464478025630512.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (215036520874429) and next prime (215036520874499).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2104086214 + ... + 2104188410.

It is an arithmetic number, because the mean of its divisors is an integer number (3076685966403).

Almost surely, 2^{215036520874464} is an apocalyptic number.

215036520874464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 215036520874464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295361852774688).

215036520874464 is an abundant number, since it is smaller than the sum of its proper divisors (375687184674912).

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

215036520874464 is a wasteful number, since it uses less digits than its factorization.

215036520874464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113477 (or 113469 counting only the distinct ones).

The product of its (nonzero) digits is 38707200, while the sum is 57.

The spelling of 215036520874464 in words is "two hundred fifteen trillion, thirty-six billion, five hundred twenty million, eight hundred seventy-four thousand, four hundred sixty-four".