156061620100 has 36 divisors (see below), whose sum is σ = 358574526324. Its totient is φ = 58752609280.

The previous prime is 156061620059. The next prime is 156061620109. The reversal of 156061620100 is 1026160651.

It can be written as a sum of positive squares in 6 ways, for example, as 12136988224 + 143924631876 = 110168^2 + 379374^2 .

It is not an unprimeable number, because it can be changed into a prime (156061620109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45898777 + ... + 45902176.

It is an arithmetic number, because the mean of its divisors is an integer number (9960403509).

Almost surely, 2^156061620100 is an apocalyptic number.

156061620100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156061620100 is an abundant number, since it is smaller than the sum of its proper divisors (202512906224).

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

156061620100 is a wasteful number, since it uses less digits than its factorization.

156061620100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91800984 (or 91800977 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

Adding to 156061620100 its reverse (1026160651), we get a palindrome (157087780751).

It can be divided in two parts, 156061 and 620100, that added together give a square (776161 = 881²).

The spelling of 156061620100 in words is "one hundred fifty-six billion, sixty-one million, six hundred twenty thousand, one hundred".