155002240646 has 32 divisors (see below), whose sum is σ = 254075300640. Its totient is φ = 70334784000.

The previous prime is 155002240633. The next prime is 155002240667. The reversal of 155002240646 is 646042200551.

155002240646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42616340 + ... + 42619976.

It is an arithmetic number, because the mean of its divisors is an integer number (7939853145).

Almost surely, 2^155002240646 is an apocalyptic number.

155002240646 is a deficient number, since it is larger than the sum of its proper divisors (99073059994).

155002240646 is a wasteful number, since it uses less digits than its factorization.

155002240646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6440.

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 155002240646 in words is "one hundred fifty-five billion, two million, two hundred forty thousand, six hundred forty-six".