156611551022140 has 24 divisors (see below), whose sum is σ = 337773020854752. Its totient is φ = 60951522559680.

The previous prime is 156611551022137. The next prime is 156611551022159. The reversal of 156611551022140 is 41220155116651.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 156611551022093 and 156611551022102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105818614816 + ... + 105818616295.

It is an arithmetic number, because the mean of its divisors is an integer number (14073875868948).

Almost surely, 2^{156611551022140} is an apocalyptic number.

156611551022140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156611551022140 is an abundant number, since it is smaller than the sum of its proper divisors (181161469832612).

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

156611551022140 is a wasteful number, since it uses less digits than its factorization.

156611551022140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211637231157 (or 211637231155 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 40.

The spelling of 156611551022140 in words is "one hundred fifty-six trillion, six hundred eleven billion, five hundred fifty-one million, twenty-two thousand, one hundred forty".