154661826242 has 64 divisors (see below), whose sum is σ = 308631859200. Its totient is φ = 56304305280.

The previous prime is 154661826229. The next prime is 154661826257. The reversal of 154661826242 is 242628166451.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 148442 + ... + 575637.

It is an arithmetic number, because the mean of its divisors is an integer number (4822372800).

Almost surely, 2^154661826242 is an apocalyptic number.

154661826242 is a deficient number, since it is larger than the sum of its proper divisors (153970032958).

154661826242 is a wasteful number, since it uses less digits than its factorization.

154661826242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724191.

The product of its digits is 1105920, while the sum is 47.

The spelling of 154661826242 in words is "one hundred fifty-four billion, six hundred sixty-one million, eight hundred twenty-six thousand, two hundred forty-two".