155342657042 has 8 divisors (see below), whose sum is σ = 245277879600. Its totient is φ = 73583363844.

The previous prime is 155342656999. The next prime is 155342657053. The reversal of 155342657042 is 240756243551.

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

It is a junction number, because it is equal to n+sod(n) for n = 155342656984 and 155342657002.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2043982292 + ... + 2043982367.

It is an arithmetic number, because the mean of its divisors is an integer number (30659734950).

Almost surely, 2^155342657042 is an apocalyptic number.

155342657042 is a deficient number, since it is larger than the sum of its proper divisors (89935222558).

155342657042 is a wasteful number, since it uses less digits than its factorization.

155342657042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4087964680.

The product of its (nonzero) digits is 1008000, while the sum is 44.

The spelling of 155342657042 in words is "one hundred fifty-five billion, three hundred forty-two million, six hundred fifty-seven thousand, forty-two".