155386649434 has 8 divisors (see below), whose sum is σ = 233102566368. Its totient is φ = 77685793980.

The previous prime is 155386649393. The next prime is 155386649461. The reversal of 155386649434 is 434946683551.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3739542 + ... + 3780865.

It is an arithmetic number, because the mean of its divisors is an integer number (29137820796).

Almost surely, 2^155386649434 is an apocalyptic number.

155386649434 is a deficient number, since it is larger than the sum of its proper divisors (77715916934).

155386649434 is a wasteful number, since it uses less digits than its factorization.

155386649434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7530740.

The product of its digits is 37324800, while the sum is 58.

The spelling of 155386649434 in words is "one hundred fifty-five billion, three hundred eighty-six million, six hundred forty-nine thousand, four hundred thirty-four".