1557077232340 has 48 divisors (see below), whose sum is σ = 3738412024704. Its totient is φ = 533651241600.

The previous prime is 1557077232313. The next prime is 1557077232367. The reversal of 1557077232340 is 432327707551.

It is an interprime number because it is at equal distance from previous prime (1557077232313) and next prime (1557077232367).

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1754766 + ... + 2488645.

It is an arithmetic number, because the mean of its divisors is an integer number (77883583848).

Almost surely, 2^{1557077232340} is an apocalyptic number.

1557077232340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1557077232340 is an abundant number, since it is smaller than the sum of its proper divisors (2181334792364).

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

1557077232340 is a wasteful number, since it uses less digits than its factorization.

1557077232340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4246048 (or 4246046 counting only the distinct ones).

The product of its (nonzero) digits is 1234800, while the sum is 46.

The spelling of 1557077232340 in words is "one trillion, five hundred fifty-seven billion, seventy-seven million, two hundred thirty-two thousand, three hundred forty".