215055544134 has 64 divisors (see below), whose sum is σ = 447210667008. Its totient is φ = 68890176000.

The previous prime is 215055544079. The next prime is 215055544177. The reversal of 215055544134 is 431445550512.

It is a junction number, because it is equal to n+sod(n) for n = 215055544092 and 215055544101.

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, 14772159 + ... + 14786709.

It is an arithmetic number, because the mean of its divisors is an integer number (6987666672).

Almost surely, 2^215055544134 is an apocalyptic number.

215055544134 is an abundant number, since it is smaller than the sum of its proper divisors (232155122874).

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

215055544134 is a wasteful number, since it uses less digits than its factorization.

215055544134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15493.

The product of its (nonzero) digits is 240000, while the sum is 39.

The spelling of 215055544134 in words is "two hundred fifteen billion, fifty-five million, five hundred forty-four thousand, one hundred thirty-four".