61011106051 has 4 divisors (see below), whose sum is σ = 69726978352. Its totient is φ = 52295233752.

The previous prime is 61011106049. The next prime is 61011106067. The reversal of 61011106051 is 15060111016.

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 61011106051 - 2¹ = 61011106049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61011106021) 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, 4357936140 + ... + 4357936153.

It is an arithmetic number, because the mean of its divisors is an integer number (17431744588).

Almost surely, 2^61011106051 is an apocalyptic number.

61011106051 is a deficient number, since it is larger than the sum of its proper divisors (8715872301).

61011106051 is an equidigital number, since it uses as much as digits as its factorization.

61011106051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8715872300.

The product of its (nonzero) digits is 180, while the sum is 22.

Adding to 61011106051 its reverse (15060111016), we get a palindrome (76071217067).

The spelling of 61011106051 in words is "sixty-one billion, eleven million, one hundred six thousand, fifty-one".