1557155052112 has 80 divisors (see below), whose sum is σ = 3307661153280. Its totient is φ = 704279318400.

The previous prime is 1557155052073. The next prime is 1557155052137. The reversal of 1557155052112 is 2112505517551.

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, 28722343 + ... + 28776505.

It is an arithmetic number, because the mean of its divisors is an integer number (41345764416).

Almost surely, 2^{1557155052112} is an apocalyptic number.

It is an amenable number.

1557155052112 is an abundant number, since it is smaller than the sum of its proper divisors (1750506101168).

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

1557155052112 is a wasteful number, since it uses less digits than its factorization.

1557155052112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54992 (or 54986 counting only the distinct ones).

The product of its (nonzero) digits is 87500, while the sum is 40.

The spelling of 1557155052112 in words is "one trillion, five hundred fifty-seven billion, one hundred fifty-five million, fifty-two thousand, one hundred twelve".