155052861454 has 4 divisors (see below), whose sum is σ = 232579292184. Its totient is φ = 77526430726.

The previous prime is 155052861451. The next prime is 155052861463. The reversal of 155052861454 is 454168250551.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 454168250551 = 8419 ⋅53945629.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155052861451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38763215362 + ... + 38763215365.

It is an arithmetic number, because the mean of its divisors is an integer number (58144823046).

Almost surely, 2^155052861454 is an apocalyptic number.

155052861454 is a deficient number, since it is larger than the sum of its proper divisors (77526430730).

155052861454 is an equidigital number, since it uses as much as digits as its factorization.

155052861454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77526430729.

The product of its (nonzero) digits is 960000, while the sum is 46.

The spelling of 155052861454 in words is "one hundred fifty-five billion, fifty-two million, eight hundred sixty-one thousand, four hundred fifty-four".