61625714155 has 16 divisors (see below), whose sum is σ = 75005491968. Its totient is φ = 48597724000.

The previous prime is 61625714113. The next prime is 61625714167. The reversal of 61625714155 is 55141752616.

It is a happy number.

It is not a de Polignac number, because 61625714155 - 2²³ = 61617325547 is a prime.

It is a super-2 number, since 2×61625714155² (a number of 22 digits) contains 22 as substring.

It is a Duffinian 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, 2719020 + ... + 2741590.

It is an arithmetic number, because the mean of its divisors is an integer number (4687843248).

Almost surely, 2^61625714155 is an apocalyptic number.

61625714155 is a deficient number, since it is larger than the sum of its proper divisors (13379777813).

61625714155 is a wasteful number, since it uses less digits than its factorization.

61625714155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30338.

The product of its digits is 252000, while the sum is 43.

The spelling of 61625714155 in words is "sixty-one billion, six hundred twenty-five million, seven hundred fourteen thousand, one hundred fifty-five".