61690116011 has 4 divisors (see below), whose sum is σ = 64372294992. Its totient is φ = 59007937032.

The previous prime is 61690115999. The next prime is 61690116029. The reversal of 61690116011 is 11061109616.

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 61690116011 - 2¹⁸ = 61689853867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61690116031) 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, 1341089456 + ... + 1341089501.

It is an arithmetic number, because the mean of its divisors is an integer number (16093073748).

Almost surely, 2^61690116011 is an apocalyptic number.

61690116011 is a deficient number, since it is larger than the sum of its proper divisors (2682178981).

61690116011 is a wasteful number, since it uses less digits than its factorization.

61690116011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2682178980.

The product of its (nonzero) digits is 1944, while the sum is 32.

The spelling of 61690116011 in words is "sixty-one billion, six hundred ninety million, one hundred sixteen thousand, eleven".