155352620263 has 4 divisors (see below), whose sum is σ = 155356679520. Its totient is φ = 155348561008.

The previous prime is 155352620249. The next prime is 155352620359. The reversal of 155352620263 is 362026253551.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 362026253551 = 165527 ⋅2187113.

It is a cyclic number.

It is not a de Polignac number, because 155352620263 - 2⁵ = 155352620231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155352624263) 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, 1971670 + ... + 2048947.

It is an arithmetic number, because the mean of its divisors is an integer number (38839169880).

Almost surely, 2^155352620263 is an apocalyptic number.

155352620263 is a deficient number, since it is larger than the sum of its proper divisors (4059257).

155352620263 is an equidigital number, since it uses as much as digits as its factorization.

155352620263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4059256.

The product of its (nonzero) digits is 324000, while the sum is 40.

The spelling of 155352620263 in words is "one hundred fifty-five billion, three hundred fifty-two million, six hundred twenty thousand, two hundred sixty-three".