155140041551 has 16 divisors (see below), whose sum is σ = 170279625600. Its totient is φ = 140175631200.

The previous prime is 155140041547. The next prime is 155140041569.

155140041551 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 155140041551 - 2² = 155140041547 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 (155140041521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1177256 + ... + 1302386.

It is an arithmetic number, because the mean of its divisors is an integer number (10642476600).

Almost surely, 2^155140041551 is an apocalyptic number.

155140041551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

155140041551 is a deficient number, since it is larger than the sum of its proper divisors (15139584049).

155140041551 is a wasteful number, since it uses less digits than its factorization.

155140041551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125830.

The product of its (nonzero) digits is 10000, while the sum is 32.

It can be divided in two parts, 1551400 and 41551, that added together give a palindrome (1592951).

The spelling of 155140041551 in words is "one hundred fifty-five billion, one hundred forty million, forty-one thousand, five hundred fifty-one".