155331447142 has 16 divisors (see below), whose sum is σ = 242474873760. Its totient is φ = 74538563008.

The previous prime is 155331447109. The next prime is 155331447157. The reversal of 155331447142 is 241744133551.

It is a junction number, because it is equal to n+sod(n) for n = 155331447095 and 155331447104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8008663 + ... + 8028034.

It is an arithmetic number, because the mean of its divisors is an integer number (15154679610).

Almost surely, 2^155331447142 is an apocalyptic number.

155331447142 is a deficient number, since it is larger than the sum of its proper divisors (87143426618).

155331447142 is a wasteful number, since it uses less digits than its factorization.

155331447142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16036895.

The product of its digits is 201600, while the sum is 40.

The spelling of 155331447142 in words is "one hundred fifty-five billion, three hundred thirty-one million, four hundred forty-seven thousand, one hundred forty-two".