1056155752765 has 16 divisors (see below), whose sum is σ = 1294391250432. Its totient is φ = 826922778624.

The previous prime is 1056155752747. The next prime is 1056155752783. The reversal of 1056155752765 is 5672575516501.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1056155752747) and next prime (1056155752783).

It is a cyclic number.

It is not a de Polignac number, because 1056155752765 - 2⁵ = 1056155752733 is a prime.

It is a super-2 number, since 2×1056155752765² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

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, 14912317 + ... + 14982973.

It is an arithmetic number, because the mean of its divisors is an integer number (80899453152).

Almost surely, 2^{1056155752765} is an apocalyptic number.

It is an amenable number.

1056155752765 is a deficient number, since it is larger than the sum of its proper divisors (238235497667).

1056155752765 is an equidigital number, since it uses as much as digits as its factorization.

1056155752765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134316.

The product of its (nonzero) digits is 11025000, while the sum is 55.

The spelling of 1056155752765 in words is "one trillion, fifty-six billion, one hundred fifty-five million, seven hundred fifty-two thousand, seven hundred sixty-five".