155261423121454 has 8 divisors (see below), whose sum is σ = 250806914273160. Its totient is φ = 71659118363736.

The previous prime is 155261423121397. The next prime is 155261423121521. The reversal of 155261423121454 is 454121324162551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×155261423121454² (a number of 29 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 in 3 ways as a sum of consecutive naturals, for example, 2985796598464 + ... + 2985796598515.

It is an arithmetic number, because the mean of its divisors is an integer number (31350864284145).

Almost surely, 2^{155261423121454} is an apocalyptic number.

155261423121454 is a deficient number, since it is larger than the sum of its proper divisors (95545491151706).

155261423121454 is a wasteful number, since it uses less digits than its factorization.

155261423121454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5971593196994.

The product of its digits is 1152000, while the sum is 46.

The spelling of 155261423121454 in words is "one hundred fifty-five trillion, two hundred sixty-one billion, four hundred twenty-three million, one hundred twenty-one thousand, four hundred fifty-four".