156105513553 has 8 divisors (see below), whose sum is σ = 170382653280. Its totient is φ = 141842662080.

The previous prime is 156105513517. The next prime is 156105513563. The reversal of 156105513553 is 355315501651.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 156105513553 - 2²¹ = 156103416401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (156105513563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3549208 + ... + 3592921.

It is an arithmetic number, because the mean of its divisors is an integer number (21297831660).

Almost surely, 2^156105513553 is an apocalyptic number.

It is an amenable number.

156105513553 is a deficient number, since it is larger than the sum of its proper divisors (14277139727).

156105513553 is a wasteful number, since it uses less digits than its factorization.

156105513553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7144127.

The product of its (nonzero) digits is 168750, while the sum is 40.

The spelling of 156105513553 in words is "one hundred fifty-six billion, one hundred five million, five hundred thirteen thousand, five hundred fifty-three".