101266155870 has 64 divisors (see below), whose sum is σ = 266912755200. Its totient is φ = 24384598400.

The previous prime is 101266155841. The next prime is 101266155871. The reversal of 101266155870 is 78551662101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101266155871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 980586 + ... + 1078925.

It is an arithmetic number, because the mean of its divisors is an integer number (4170511800).

Almost surely, 2^101266155870 is an apocalyptic number.

101266155870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101266155870 is an abundant number, since it is smaller than the sum of its proper divisors (165646599330).

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

101266155870 is a wasteful number, since it uses less digits than its factorization.

101266155870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2059681.

The product of its (nonzero) digits is 100800, while the sum is 42.

The spelling of 101266155870 in words is "one hundred one billion, two hundred sixty-six million, one hundred fifty-five thousand, eight hundred seventy".