2155310152051 has 8 divisors (see below), whose sum is σ = 2473517928960. Its totient is φ = 1839678956808.

The previous prime is 2155310151959. The next prime is 2155310152063. The reversal of 2155310152051 is 1502510135512.

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

It is a de Polignac number, because none of the positive numbers 2^k-2155310152051 is a prime.

It is a super-4 number, since 4×2155310152051⁴ (a number of 50 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2155310155051) 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, 644143621 + ... + 644146966.

It is an arithmetic number, because the mean of its divisors is an integer number (309189741120).

Almost surely, 2^{2155310152051} is an apocalyptic number.

2155310152051 is a deficient number, since it is larger than the sum of its proper divisors (318207776909).

2155310152051 is a wasteful number, since it uses less digits than its factorization.

2155310152051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288290833.

The product of its (nonzero) digits is 7500, while the sum is 31.

Adding to 2155310152051 its reverse (1502510135512), we get a palindrome (3657820287563).

It can be divided in two parts, 2155310 and 152051, that added together give a square (2307361 = 1519²).

The spelling of 2155310152051 in words is "two trillion, one hundred fifty-five billion, three hundred ten million, one hundred fifty-two thousand, fifty-one".