61106651051 has 4 divisors (see below), whose sum is σ = 64322790600. Its totient is φ = 57890511504.

The previous prime is 61106651041. The next prime is 61106651057. The reversal of 61106651051 is 15015660116.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61106651051 - 2¹⁸ = 61106388907 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61106650999 and 61106651017.

It is not an unprimeable number, because it can be changed into a prime (61106651057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1608069746 + ... + 1608069783.

It is an arithmetic number, because the mean of its divisors is an integer number (16080697650).

Almost surely, 2^61106651051 is an apocalyptic number.

61106651051 is a deficient number, since it is larger than the sum of its proper divisors (3216139549).

61106651051 is a wasteful number, since it uses less digits than its factorization.

61106651051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3216139548.

The product of its (nonzero) digits is 5400, while the sum is 32.

The spelling of 61106651051 in words is "sixty-one billion, one hundred six million, six hundred fifty-one thousand, fifty-one".