101561857214 has 32 divisors (see below), whose sum is σ = 162645511680. Its totient is φ = 47423558592.

The previous prime is 101561857193. The next prime is 101561857237. The reversal of 101561857214 is 412758165101.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5713889 + ... + 5731635.

It is an arithmetic number, because the mean of its divisors is an integer number (5082672240).

Almost surely, 2^101561857214 is an apocalyptic number.

101561857214 is a deficient number, since it is larger than the sum of its proper divisors (61083654466).

101561857214 is a wasteful number, since it uses less digits than its factorization.

101561857214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19904.

The product of its (nonzero) digits is 67200, while the sum is 41.

The spelling of 101561857214 in words is "one hundred one billion, five hundred sixty-one million, eight hundred fifty-seven thousand, two hundred fourteen".