215071756152 has 64 divisors (see below), whose sum is σ = 587139096960. Its totient is φ = 65108841600.

The previous prime is 215071756087. The next prime is 215071756153. The reversal of 215071756152 is 251657170512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215071756153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134674 + ... + 669537.

It is an arithmetic number, because the mean of its divisors is an integer number (9174048390).

Almost surely, 2^215071756152 is an apocalyptic number.

215071756152 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

215071756152 is an abundant number, since it is smaller than the sum of its proper divisors (372067340808).

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

215071756152 is a wasteful number, since it uses less digits than its factorization.

215071756152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805244 (or 805240 counting only the distinct ones).

The product of its (nonzero) digits is 147000, while the sum is 42.

The spelling of 215071756152 in words is "two hundred fifteen billion, seventy-one million, seven hundred fifty-six thousand, one hundred fifty-two".