155153066434 has 4 divisors (see below), whose sum is σ = 232729599654. Its totient is φ = 77576533216.

The previous prime is 155153066413. The next prime is 155153066461. The reversal of 155153066434 is 434660351551.

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., 146157113025 + 8995953409 = 382305^2 + 94847^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38788266607 + ... + 38788266610.

Almost surely, 2^155153066434 is an apocalyptic number.

155153066434 is a deficient number, since it is larger than the sum of its proper divisors (77576533220).

155153066434 is an equidigital number, since it uses as much as digits as its factorization.

155153066434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77576533219.

The product of its (nonzero) digits is 648000, while the sum is 43.

The spelling of 155153066434 in words is "one hundred fifty-five billion, one hundred fifty-three million, sixty-six thousand, four hundred thirty-four".