61420650255 has 12 divisors (see below), whose sum is σ = 106462460520. Its totient is φ = 32757680112.

The previous prime is 61420650233. The next prime is 61420650337. The reversal of 61420650255 is 55205602416.

61420650255 is a `hidden beast` number, since 6 + 142 + 0 + 6 + 502 + 5 + 5 = 666.

It is not a de Polignac number, because 61420650255 - 2¹⁹ = 61420125967 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 682451625 + ... + 682451714.

It is an arithmetic number, because the mean of its divisors is an integer number (8871871710).

Almost surely, 2^61420650255 is an apocalyptic number.

61420650255 is a deficient number, since it is larger than the sum of its proper divisors (45041810265).

61420650255 is a wasteful number, since it uses less digits than its factorization.

61420650255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1364903350 (or 1364903347 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 61420650255 in words is "sixty-one billion, four hundred twenty million, six hundred fifty thousand, two hundred fifty-five".