157434619136 has 72 divisors (see below), whose sum is σ = 323124084360. Its totient is φ = 76522807296.

The previous prime is 157434619103. The next prime is 157434619183. The reversal of 157434619136 is 631916434751.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 77141729536 + 80292889600 = 277744^2 + 283360^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1425686 + ... + 1532138.

It is an arithmetic number, because the mean of its divisors is an integer number (4487834505).

Almost surely, 2^157434619136 is an apocalyptic number.

157434619136 is a gapful number since it is divisible by the number (16) 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 157434619136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161562042180).

157434619136 is an abundant number, since it is smaller than the sum of its proper divisors (165689465224).

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

157434619136 is a wasteful number, since it uses less digits than its factorization.

157434619136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106631 (or 106617 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 50.

The spelling of 157434619136 in words is "one hundred fifty-seven billion, four hundred thirty-four million, six hundred nineteen thousand, one hundred thirty-six".