157457455540 has 144 divisors (see below), whose sum is σ = 421292902464. Its totient is φ = 48881280000.

The previous prime is 157457455531. The next prime is 157457455549. The reversal of 157457455540 is 45554754751.

It is an interprime number because it is at equal distance from previous prime (157457455531) and next prime (157457455549).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157457455549) 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, 2676684 + ... + 2734876.

It is an arithmetic number, because the mean of its divisors is an integer number (2925645156).

Almost surely, 2^157457455540 is an apocalyptic number.

157457455540 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 157457455540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210646451232).

157457455540 is an abundant number, since it is smaller than the sum of its proper divisors (263835446924).

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

157457455540 is a wasteful number, since it uses less digits than its factorization.

157457455540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58478 (or 58469 counting only the distinct ones).

The product of its (nonzero) digits is 9800000, while the sum is 52.

The spelling of 157457455540 in words is "one hundred fifty-seven billion, four hundred fifty-seven million, four hundred fifty-five thousand, five hundred forty".