156755813801 has 2 divisors, whose sum is σ = 156755813802. Its totient is φ = 156755813800.

The previous prime is 156755813761. The next prime is 156755813821. The reversal of 156755813801 is 108318557651.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 156755813776 + 25 = 395924^2 + 5^2 .

It is a cyclic number.

It is not a de Polignac number, because 156755813801 - 2¹⁴ = 156755797417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 156755813801.

It is not a weakly prime, because it can be changed into another prime (156755813821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78377906900 + 78377906901.

It is an arithmetic number, because the mean of its divisors is an integer number (78377906901).

Almost surely, 2^156755813801 is an apocalyptic number.

It is an amenable number.

156755813801 is a deficient number, since it is larger than the sum of its proper divisors (1).

156755813801 is an equidigital number, since it uses as much as digits as its factorization.

156755813801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008000, while the sum is 50.

The spelling of 156755813801 in words is "one hundred fifty-six billion, seven hundred fifty-five million, eight hundred thirteen thousand, eight hundred one".