101611071870 has 128 divisors (see below), whose sum is σ = 317260800000. Its totient is φ = 20195978880.

The previous prime is 101611071857. The next prime is 101611071899. The reversal of 101611071870 is 78170116101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 903120 + ... + 1009379.

It is an arithmetic number, because the mean of its divisors is an integer number (2478600000).

Almost surely, 2^101611071870 is an apocalyptic number.

101611071870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101611071870 is an abundant number, since it is smaller than the sum of its proper divisors (215649728130).

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

101611071870 is a wasteful number, since it uses less digits than its factorization.

101611071870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1912550.

The product of its (nonzero) digits is 2352, while the sum is 33.

Adding to 101611071870 its reverse (78170116101), we get a palindrome (179781187971).

The spelling of 101611071870 in words is "one hundred one billion, six hundred eleven million, seventy-one thousand, eight hundred seventy".