155625145642 has 8 divisors (see below), whose sum is σ = 233458071300. Its totient is φ = 77805788544.

The previous prime is 155625145639. The next prime is 155625145651. The reversal of 155625145642 is 246541526551.

It can be written as a sum of positive squares in 2 ways, for example, as 154418347521 + 1206798121 = 392961^2 + 34739^2 .

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 = 155625145592 and 155625145601.

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, 3363417 + ... + 3409372.

Almost surely, 2^155625145642 is an apocalyptic number.

155625145642 is a deficient number, since it is larger than the sum of its proper divisors (77832925658).

155625145642 is a wasteful number, since it uses less digits than its factorization.

155625145642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6784280.

The product of its digits is 1440000, while the sum is 46.

The spelling of 155625145642 in words is "one hundred fifty-five billion, six hundred twenty-five million, one hundred forty-five thousand, six hundred forty-two".