101206151550 has 72 divisors (see below), whose sum is σ = 310751088336. Its totient is φ = 23132833920.

The previous prime is 101206151461. The next prime is 101206151611. The reversal of 101206151550 is 55151602101.

101206151550 is a `hidden beast` number, since 1 + 0 + 1 + 2 + 0 + 61 + 51 + 550 = 666.

It is a super-2 number, since 2×101206151550² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 16061319 + ... + 16067618.

It is an arithmetic number, because the mean of its divisors is an integer number (4315987338).

Almost surely, 2^101206151550 is an apocalyptic number.

101206151550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101206151550 is an abundant number, since it is smaller than the sum of its proper divisors (209544936786).

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

101206151550 is a wasteful number, since it uses less digits than its factorization.

101206151550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32128962 (or 32128954 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 27.

Adding to 101206151550 its reverse (55151602101), we get a palindrome (156357753651).

It can be divided in two parts, 1012061 and 51550, that added together give a triangular number (1063611 = T₁₄₅₈).

The spelling of 101206151550 in words is "one hundred one billion, two hundred six million, one hundred fifty-one thousand, five hundred fifty".