155242054054 has 4 divisors (see below), whose sum is σ = 232863081084. Its totient is φ = 77621027026.

The previous prime is 155242053991. The next prime is 155242054057. The reversal of 155242054054 is 450450242551.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 450450242551 = 189361 ⋅2378791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155242054057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38810513512 + ... + 38810513515.

It is an arithmetic number, because the mean of its divisors is an integer number (58215770271).

Almost surely, 2^155242054054 is an apocalyptic number.

155242054054 is a deficient number, since it is larger than the sum of its proper divisors (77621027030).

155242054054 is an equidigital number, since it uses as much as digits as its factorization.

155242054054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77621027029.

The product of its (nonzero) digits is 160000, while the sum is 37.

The spelling of 155242054054 in words is "one hundred fifty-five billion, two hundred forty-two million, fifty-four thousand, fifty-four".