156880745448 has 256 divisors, whose sum is σ = 511213731840. Its totient is φ = 39050035200.

The previous prime is 156880745423. The next prime is 156880745449. The reversal of 156880745448 is 844547088651.

It is a happy number.

It is a super-2 number, since 2×156880745448² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 156880745391 and 156880745400.

It is not an unprimeable number, because it can be changed into a prime (156880745449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1997808 + ... + 2074848.

It is an arithmetic number, because the mean of its divisors is an integer number (1996928640).

Almost surely, 2^156880745448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 156880745448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255606865920).

156880745448 is an abundant number, since it is smaller than the sum of its proper divisors (354332986392).

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

156880745448 is a wasteful number, since it uses less digits than its factorization.

156880745448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77128 (or 77124 counting only the distinct ones).

The product of its (nonzero) digits is 34406400, while the sum is 60.

The spelling of 156880745448 in words is "one hundred fifty-six billion, eight hundred eighty million, seven hundred forty-five thousand, four hundred forty-eight".