155151484151551 has 4 divisors (see below), whose sum is σ = 156267681879400. Its totient is φ = 154035286423704.

The previous prime is 155151484151479. The next prime is 155151484151617.

155151484151551 is nontrivially palindromic in base 10.

155151484151551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 155151484151551 - 2²⁹ = 155150947280639 is a prime.

It is a super-2 number, since 2×155151484151551² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155151484152551) 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, 558098863716 + ... + 558098863993.

It is an arithmetic number, because the mean of its divisors is an integer number (39066920469850).

Almost surely, 2^{155151484151551} is an apocalyptic number.

155151484151551 is a deficient number, since it is larger than the sum of its proper divisors (1116197727849).

155151484151551 is a wasteful number, since it uses less digits than its factorization.

155151484151551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116197727848.

The product of its digits is 2000000, while the sum is 52.

The spelling of 155151484151551 in words is "one hundred fifty-five trillion, one hundred fifty-one billion, four hundred eighty-four million, one hundred fifty-one thousand, five hundred fifty-one".