61265656155 has 32 divisors (see below), whose sum is σ = 107995223808. Its totient is φ = 29410448000.

The previous prime is 61265656141. The next prime is 61265656183. The reversal of 61265656155 is 55165656216.

It is not a de Polignac number, because 61265656155 - 2¹⁹ = 61265131867 is a prime.

It is a super-3 number, since 3×61265656155³ (a number of 33 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1821489 + ... + 1854818.

It is an arithmetic number, because the mean of its divisors is an integer number (3374850744).

Almost surely, 2^61265656155 is an apocalyptic number.

61265656155 is a deficient number, since it is larger than the sum of its proper divisors (46729567653).

61265656155 is a wasteful number, since it uses less digits than its factorization.

61265656155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3676427.

The product of its digits is 1620000, while the sum is 48.

The spelling of 61265656155 in words is "sixty-one billion, two hundred sixty-five million, six hundred fifty-six thousand, one hundred fifty-five".