1156755652551 has 24 divisors (see below), whose sum is σ = 1684001919600. Its totient is φ = 765111859200.

The previous prime is 1156755652523. The next prime is 1156755652561. The reversal of 1156755652551 is 1552565576511.

1156755652551 is a `hidden beast` number, since 1 + 1 + 5 + 6 + 7 + 5 + 565 + 25 + 51 = 666.

It is not a de Polignac number, because 1156755652551 - 2⁶ = 1156755652487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156755652501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5255431 + ... + 5471111.

It is an arithmetic number, because the mean of its divisors is an integer number (70166746650).

Almost surely, 2^{1156755652551} is an apocalyptic number.

1156755652551 is a deficient number, since it is larger than the sum of its proper divisors (527246267049).

1156755652551 is a wasteful number, since it uses less digits than its factorization.

1156755652551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220367 (or 220364 counting only the distinct ones).

The product of its digits is 7875000, while the sum is 54.

The spelling of 1156755652551 in words is "one trillion, one hundred fifty-six billion, seven hundred fifty-five million, six hundred fifty-two thousand, five hundred fifty-one".