1056556600099 has 16 divisors (see below), whose sum is σ = 1418593478400. Its totient is φ = 759960790560.

The previous prime is 1056556600091. The next prime is 1056556600117. The reversal of 1056556600099 is 9900066556501.

It is a cyclic number.

It is not a de Polignac number, because 1056556600099 - 2³ = 1056556600091 is a prime.

It is a super-2 number, since 2×1056556600099² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1056556600091) 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, 527749549 + ... + 527751550.

It is an arithmetic number, because the mean of its divisors is an integer number (88662092400).

Almost surely, 2^{1056556600099} is an apocalyptic number.

1056556600099 is a deficient number, since it is larger than the sum of its proper divisors (362036878301).

1056556600099 is a wasteful number, since it uses less digits than its factorization.

1056556600099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055501130.

The product of its (nonzero) digits is 2187000, while the sum is 52.

The spelling of 1056556600099 in words is "one trillion, fifty-six billion, five hundred fifty-six million, six hundred thousand, ninety-nine".