154120341551 has 12 divisors (see below), whose sum is σ = 174869685312. Its totient is φ = 135589740000.

The previous prime is 154120341547. The next prime is 154120341601. The reversal of 154120341551 is 155143021451.

It is not a de Polignac number, because 154120341551 - 2² = 154120341547 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 (154120341511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20540150 + ... + 20547651.

It is an arithmetic number, because the mean of its divisors is an integer number (14572473776).

Almost surely, 2^154120341551 is an apocalyptic number.

154120341551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

154120341551 is a deficient number, since it is larger than the sum of its proper divisors (20749343761).

154120341551 is a wasteful number, since it uses less digits than its factorization.

154120341551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41087854 (or 41087843 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 32.

The spelling of 154120341551 in words is "one hundred fifty-four billion, one hundred twenty million, three hundred forty-one thousand, five hundred fifty-one".