1570720056551 has 16 divisors (see below), whose sum is σ = 1623238975488. Its totient is φ = 1518317892000.

The previous prime is 1570720056541. The next prime is 1570720056611. The reversal of 1570720056551 is 1556500270751.

It is a cyclic number.

It is not a de Polignac number, because 1570720056551 - 2³⁸ = 1295842149607 is a prime.

It is a super-2 number, since 2×1570720056551² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1570720056541) 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, 108072281 + ... + 108086813.

It is an arithmetic number, because the mean of its divisors is an integer number (101452435968).

Almost surely, 2^{1570720056551} is an apocalyptic number.

1570720056551 is a deficient number, since it is larger than the sum of its proper divisors (52518918937).

1570720056551 is a wasteful number, since it uses less digits than its factorization.

1570720056551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18302.

The product of its (nonzero) digits is 367500, while the sum is 44.

The spelling of 1570720056551 in words is "one trillion, five hundred seventy billion, seven hundred twenty million, fifty-six thousand, five hundred fifty-one".