155354464453551 has 48 divisors (see below), whose sum is σ = 231103005646464. Its totient is φ = 92739806280000.

The previous prime is 155354464453519. The next prime is 155354464453607.

155354464453551 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 155354464453551 - 2⁵ = 155354464453519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155354464453151) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 250951101 + ... + 251569401.

It is an arithmetic number, because the mean of its divisors is an integer number (4814645950968).

Almost surely, 2^{155354464453551} is an apocalyptic number.

155354464453551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

155354464453551 is a deficient number, since it is larger than the sum of its proper divisors (75748541192913).

155354464453551 is a wasteful number, since it uses less digits than its factorization.

155354464453551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628724 (or 628713 counting only the distinct ones).

The product of its digits is 216000000, while the sum is 60.

The spelling of 155354464453551 in words is "one hundred fifty-five trillion, three hundred fifty-four billion, four hundred sixty-four million, four hundred fifty-three thousand, five hundred fifty-one".