1361605460554 has 16 divisors (see below), whose sum is σ = 2057652160776. Its totient is φ = 675740262400.

The previous prime is 1361605460519. The next prime is 1361605460563. The reversal of 1361605460554 is 4550645061631.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1357213350025 + 4392110529 = 1164995^2 + 66273^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4569157 + ... + 4858024.

Almost surely, 2^{1361605460554} is an apocalyptic number.

1361605460554 is a deficient number, since it is larger than the sum of its proper divisors (696046700222).

1361605460554 is a wasteful number, since it uses less digits than its factorization.

1361605460554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9427721.

The product of its (nonzero) digits is 1296000, while the sum is 46.

The spelling of 1361605460554 in words is "one trillion, three hundred sixty-one billion, six hundred five million, four hundred sixty thousand, five hundred fifty-four".