155397283444 has 24 divisors (see below), whose sum is σ = 305597335680. Its totient is φ = 68603482464.

The previous prime is 155397283427. The next prime is 155397283453. The reversal of 155397283444 is 444382793551.

155397283444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×155397283444² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64964224 + ... + 64966615.

It is an arithmetic number, because the mean of its divisors is an integer number (12733222320).

Almost surely, 2^155397283444 is an apocalyptic number.

It is an amenable number.

155397283444 is a deficient number, since it is larger than the sum of its proper divisors (150200052236).

155397283444 is a wasteful number, since it uses less digits than its factorization.

155397283444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129930879 (or 129930877 counting only the distinct ones).

The product of its digits is 14515200, while the sum is 55.

The spelling of 155397283444 in words is "one hundred fifty-five billion, three hundred ninety-seven million, two hundred eighty-three thousand, four hundred forty-four".