157771070142 has 24 divisors (see below), whose sum is σ = 367059225096. Its totient is φ = 45077448528.

The previous prime is 157771070101. The next prime is 157771070143. The reversal of 157771070142 is 241070177751.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 157771070094 and 157771070103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157771070143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 268317853 + ... + 268318440.

It is an arithmetic number, because the mean of its divisors is an integer number (15294134379).

Almost surely, 2^157771070142 is an apocalyptic number.

157771070142 is an abundant number, since it is smaller than the sum of its proper divisors (209288154954).

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

157771070142 is a wasteful number, since it uses less digits than its factorization.

157771070142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536636312 (or 536636305 counting only the distinct ones).

The product of its (nonzero) digits is 96040, while the sum is 42.

The spelling of 157771070142 in words is "one hundred fifty-seven billion, seven hundred seventy-one million, seventy thousand, one hundred forty-two".