1577320136142 has 32 divisors (see below), whose sum is σ = 3293894350080. Its totient is φ = 502593474240.

The previous prime is 1577320136137. The next prime is 1577320136143. The reversal of 1577320136142 is 2416310237751.

It is a junction number, because it is equal to n+sod(n) for n = 1577320136094 and 1577320136103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1577320136143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3420967 + ... + 3854562.

It is an arithmetic number, because the mean of its divisors is an integer number (102934198440).

Almost surely, 2^{1577320136142} is an apocalyptic number.

1577320136142 is an abundant number, since it is smaller than the sum of its proper divisors (1716574213938).

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

1577320136142 is a wasteful number, since it uses less digits than its factorization.

1577320136142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7277128.

The product of its (nonzero) digits is 211680, while the sum is 42.

The spelling of 1577320136142 in words is "one trillion, five hundred seventy-seven billion, three hundred twenty million, one hundred thirty-six thousand, one hundred forty-two".