261655474062 has 32 divisors (see below), whose sum is σ = 534854886912. Its totient is φ = 85297346624.

The previous prime is 261655474049. The next prime is 261655474123. The reversal of 261655474062 is 260474556162.

261655474062 is digitally balanced in base 3, 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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13618 + ... + 723530.

It is an arithmetic number, because the mean of its divisors is an integer number (16714215216).

Almost surely, 2^261655474062 is an apocalyptic number.

261655474062 is an abundant number, since it is smaller than the sum of its proper divisors (273199412850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

261655474062 is a wasteful number, since it uses less digits than its factorization.

261655474062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711272.

The product of its (nonzero) digits is 2419200, while the sum is 48.

The spelling of 261655474062 in words is "two hundred sixty-one billion, six hundred fifty-five million, four hundred seventy-four thousand, sixty-two".