215340547416 has 32 divisors (see below), whose sum is σ = 538366446960. Its totient is φ = 71778172032.

The previous prime is 215340547379. The next prime is 215340547427. The reversal of 215340547416 is 614745043512.

It is a super-2 number, since 2×215340547416² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 930126 + ... + 1138338.

Almost surely, 2^215340547416 is an apocalyptic number.

It is an amenable number.

215340547416 is an abundant number, since it is smaller than the sum of its proper divisors (323025899544).

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

215340547416 is a wasteful number, since it uses less digits than its factorization.

215340547416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251315 (or 251311 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 42.

The spelling of 215340547416 in words is "two hundred fifteen billion, three hundred forty million, five hundred forty-seven thousand, four hundred sixteen".