157734455256 has 192 divisors, whose sum is σ = 517273473600. Its totient is φ = 42389028864.

The previous prime is 157734455159. The next prime is 157734455257. The reversal of 157734455256 is 652554437751.

It is a happy number.

157734455256 is a `hidden beast` number, since 1 + 5 + 7 + 7 + 34 + 4 + 552 + 56 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157734455257) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16042950 + ... + 16052778.

It is an arithmetic number, because the mean of its divisors is an integer number (2694132675).

Almost surely, 2^157734455256 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 157734455256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (258636736800).

157734455256 is an abundant number, since it is smaller than the sum of its proper divisors (359539018344).

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

157734455256 is a wasteful number, since it uses less digits than its factorization.

157734455256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11738 (or 11731 counting only the distinct ones).

The product of its digits is 17640000, while the sum is 54.

The spelling of 157734455256 in words is "one hundred fifty-seven billion, seven hundred thirty-four million, four hundred fifty-five thousand, two hundred fifty-six".