155305460554 has 4 divisors (see below), whose sum is σ = 232958190834. Its totient is φ = 77652730276.

The previous prime is 155305460549. The next prime is 155305460581. The reversal of 155305460554 is 455064503551.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 455064503551 = 7 ⋅65009214793.

It can be written as a sum of positive squares in only one way, i.e., 88574688225 + 66730772329 = 297615^2 + 258323^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 155305460554.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38826365137 + ... + 38826365140.

Almost surely, 2^155305460554 is an apocalyptic number.

155305460554 is a deficient number, since it is larger than the sum of its proper divisors (77652730280).

155305460554 is an equidigital number, since it uses as much as digits as its factorization.

155305460554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77652730279.

The product of its (nonzero) digits is 900000, while the sum is 43.

The spelling of 155305460554 in words is "one hundred fifty-five billion, three hundred five million, four hundred sixty thousand, five hundred fifty-four".