155163021542 has 8 divisors (see below), whose sum is σ = 244994244600. Its totient is φ = 73498273344.

The previous prime is 155163021527. The next prime is 155163021583. The reversal of 155163021542 is 245120361551.

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

It is a congruent number.

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, 2041618667 + ... + 2041618742.

It is an arithmetic number, because the mean of its divisors is an integer number (30624280575).

Almost surely, 2^155163021542 is an apocalyptic number.

155163021542 is a deficient number, since it is larger than the sum of its proper divisors (89831223058).

155163021542 is a wasteful number, since it uses less digits than its factorization.

155163021542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4083237430.

The product of its (nonzero) digits is 36000, while the sum is 35.

The spelling of 155163021542 in words is "one hundred fifty-five billion, one hundred sixty-three million, twenty-one thousand, five hundred forty-two".