156155355448220 has 48 divisors (see below), whose sum is σ = 328591844380800. Its totient is φ = 62335377569280.

The previous prime is 156155355448117. The next prime is 156155355448247. The reversal of 156155355448220 is 22844553551651.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158735021 + ... + 159715739.

It is an arithmetic number, because the mean of its divisors is an integer number (6845663424600).

Almost surely, 2^{156155355448220} is an apocalyptic number.

156155355448220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156155355448220 is an abundant number, since it is smaller than the sum of its proper divisors (172436488932580).

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

156155355448220 is a wasteful number, since it uses less digits than its factorization.

156155355448220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996878 (or 996876 counting only the distinct ones).

The product of its (nonzero) digits is 28800000, while the sum is 56.

The spelling of 156155355448220 in words is "one hundred fifty-six trillion, one hundred fifty-five billion, three hundred fifty-five million, four hundred forty-eight thousand, two hundred twenty".