155042457454 has 4 divisors (see below), whose sum is σ = 232563686184. Its totient is φ = 77521228726.

The previous prime is 155042457413. The next prime is 155042457461. The reversal of 155042457454 is 454754240551.

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

It is a super-2 number, since 2×155042457454² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38760614362 + ... + 38760614365.

It is an arithmetic number, because the mean of its divisors is an integer number (58140921546).

Almost surely, 2^155042457454 is an apocalyptic number.

155042457454 is a deficient number, since it is larger than the sum of its proper divisors (77521228730).

155042457454 is an equidigital number, since it uses as much as digits as its factorization.

155042457454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77521228729.

The product of its (nonzero) digits is 2240000, while the sum is 46.

The spelling of 155042457454 in words is "one hundred fifty-five billion, forty-two million, four hundred fifty-seven thousand, four hundred fifty-four".