155243700466 has 4 divisors (see below), whose sum is σ = 232865550702. Its totient is φ = 77621850232.

The previous prime is 155243700379. The next prime is 155243700467. The reversal of 155243700466 is 664007342551.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 147670349841 + 7573350625 = 384279^2 + 87025^2 .

It is not an unprimeable number, because it can be changed into a prime (155243700467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38810925115 + ... + 38810925118.

Almost surely, 2^155243700466 is an apocalyptic number.

155243700466 is a deficient number, since it is larger than the sum of its proper divisors (77621850236).

155243700466 is an equidigital number, since it uses as much as digits as its factorization.

155243700466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77621850235.

The product of its (nonzero) digits is 604800, while the sum is 43.

The spelling of 155243700466 in words is "one hundred fifty-five billion, two hundred forty-three million, seven hundred thousand, four hundred sixty-six".