151555513553 has 4 divisors (see below), whose sum is σ = 160470543780. Its totient is φ = 142640483328.

The previous prime is 151555513541. The next prime is 151555513579. The reversal of 151555513553 is 355315555151.

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 95090823424 + 56464690129 = 308368^2 + 237623^2 .

It is a cyclic number.

It is not a de Polignac number, because 151555513553 - 2⁴ = 151555513537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151555513513) 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, 4457515088 + ... + 4457515121.

It is an arithmetic number, because the mean of its divisors is an integer number (40117635945).

Almost surely, 2^151555513553 is an apocalyptic number.

It is an amenable number.

151555513553 is a deficient number, since it is larger than the sum of its proper divisors (8915030227).

151555513553 is an equidigital number, since it uses as much as digits as its factorization.

151555513553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8915030226.

The product of its digits is 703125, while the sum is 44.

The spelling of 151555513553 in words is "one hundred fifty-one billion, five hundred fifty-five million, five hundred thirteen thousand, five hundred fifty-three".