1056621602145 has 32 divisors (see below), whose sum is σ = 1708550258688. Its totient is φ = 557570478528.

The previous prime is 1056621602129. The next prime is 1056621602159. The reversal of 1056621602145 is 5412061266501.

It is not a de Polignac number, because 1056621602145 - 2⁴ = 1056621602129 is a prime.

It is a super-2 number, since 2×1056621602145² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56529 + ... + 1454798.

It is an arithmetic number, because the mean of its divisors is an integer number (53392195584).

Almost surely, 2^{1056621602145} is an apocalyptic number.

1056621602145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1056621602145 is a deficient number, since it is larger than the sum of its proper divisors (651928656543).

1056621602145 is a wasteful number, since it uses less digits than its factorization.

1056621602145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1511829.

The product of its (nonzero) digits is 86400, while the sum is 39.

Adding to 1056621602145 its reverse (5412061266501), we get a palindrome (6468682868646).

The spelling of 1056621602145 in words is "one trillion, fifty-six billion, six hundred twenty-one million, six hundred two thousand, one hundred forty-five".