155142445564 has 12 divisors (see below), whose sum is σ = 271502077000. Its totient is φ = 77570423568.

The previous prime is 155142445561. The next prime is 155142445571. The reversal of 155142445564 is 465544241551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155142445561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 547642 + ... + 781150.

Almost surely, 2^155142445564 is an apocalyptic number.

It is an amenable number.

155142445564 is a deficient number, since it is larger than the sum of its proper divisors (116359631436).

155142445564 is a wasteful number, since it uses less digits than its factorization.

155142445564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399612 (or 399610 counting only the distinct ones).

The product of its digits is 1920000, while the sum is 46.

The spelling of 155142445564 in words is "one hundred fifty-five billion, one hundred forty-two million, four hundred forty-five thousand, five hundred sixty-four".