215101153545 has 16 divisors (see below), whose sum is σ = 344228193600. Its totient is φ = 114698499264.

The previous prime is 215101153471. The next prime is 215101153591. The reversal of 215101153545 is 545351101512.

It is a happy number.

It is not a de Polignac number, because 215101153545 - 2⁷ = 215101153417 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1301695 + ... + 1457604.

It is an arithmetic number, because the mean of its divisors is an integer number (21514262100).

Almost surely, 2^215101153545 is an apocalyptic number.

It is an amenable number.

215101153545 is a deficient number, since it is larger than the sum of its proper divisors (129127040055).

215101153545 is a wasteful number, since it uses less digits than its factorization.

215101153545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2764504.

The product of its (nonzero) digits is 15000, while the sum is 33.

The spelling of 215101153545 in words is "two hundred fifteen billion, one hundred one million, one hundred fifty-three thousand, five hundred forty-five".