155567653441 has 4 divisors (see below), whose sum is σ = 156064675012. Its totient is φ = 155070631872.

The previous prime is 155567653363. The next prime is 155567653453. The reversal of 155567653441 is 144356765551.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 59928998416 + 95638655025 = 244804^2 + 309255^2 .

It is a cyclic number.

It is not a de Polignac number, because 155567653441 - 2²⁷ = 155433435713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155567653471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248510316 + ... + 248510941.

It is an arithmetic number, because the mean of its divisors is an integer number (39016168753).

Almost surely, 2^155567653441 is an apocalyptic number.

It is an amenable number.

155567653441 is a deficient number, since it is larger than the sum of its proper divisors (497021571).

155567653441 is an equidigital number, since it uses as much as digits as its factorization.

155567653441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497021570.

The product of its digits is 7560000, while the sum is 52.

The spelling of 155567653441 in words is "one hundred fifty-five billion, five hundred sixty-seven million, six hundred fifty-three thousand, four hundred forty-one".