61061660551654 has 16 divisors (see below), whose sum is σ = 104708633246208. Its totient is φ = 26161407875592.

The previous prime is 61061660551637. The next prime is 61061660551673. The reversal of 61061660551654 is 45615506616016.

It is a congruent number.

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, 656219982 + ... + 656313025.

It is an arithmetic number, because the mean of its divisors is an integer number (6544289577888).

Almost surely, 2^{61061660551654} is an apocalyptic number.

61061660551654 is a deficient number, since it is larger than the sum of its proper divisors (43646972694554).

61061660551654 is a wasteful number, since it uses less digits than its factorization.

61061660551654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312536339.

The product of its (nonzero) digits is 3888000, while the sum is 52.

The spelling of 61061660551654 in words is "sixty-one trillion, sixty-one billion, six hundred sixty million, five hundred fifty-one thousand, six hundred fifty-four".