1461261356655 has 16 divisors (see below), whose sum is σ = 2338665370080. Its totient is φ = 779123657088.

The previous prime is 1461261356609. The next prime is 1461261356669. The reversal of 1461261356655 is 5566531621641.

It is not a de Polignac number, because 1461261356655 - 2¹⁸ = 1461261094511 is a prime.

It is a super-2 number, since 2×1461261356655² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1461261356598 and 1461261356607.

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, 13427320 + ... + 13535709.

It is an arithmetic number, because the mean of its divisors is an integer number (146166585630).

Almost surely, 2^{1461261356655} is an apocalyptic number.

1461261356655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1461261356655 is a deficient number, since it is larger than the sum of its proper divisors (877404013425).

1461261356655 is a wasteful number, since it uses less digits than its factorization.

1461261356655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26966650.

The product of its digits is 3888000, while the sum is 51.

The spelling of 1461261356655 in words is "one trillion, four hundred sixty-one billion, two hundred sixty-one million, three hundred fifty-six thousand, six hundred fifty-five".