156861154560 has 576 divisors, whose sum is σ = 578382013440. Its totient is φ = 35831808000.

The previous prime is 156861154537. The next prime is 156861154573. The reversal of 156861154560 is 65451168651.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 193416555 + ... + 193417365.

It is an arithmetic number, because the mean of its divisors is an integer number (1004135440).

Almost surely, 2^156861154560 is an apocalyptic number.

156861154560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 156861154560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289191006720).

156861154560 is an abundant number, since it is smaller than the sum of its proper divisors (421520858880).

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

156861154560 is a wasteful number, since it uses less digits than its factorization.

156861154560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106 (or 1092 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 48.

The spelling of 156861154560 in words is "one hundred fifty-six billion, eight hundred sixty-one million, one hundred fifty-four thousand, five hundred sixty".