61311662 has 4 divisors (see below), whose sum is σ = 91967496. Its totient is φ = 30655830.

The previous prime is 61311659. The next prime is 61311703. The reversal of 61311662 is 26611316.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15327914 + ... + 15327917.

It is an arithmetic number, because the mean of its divisors is an integer number (22991874).

Almost surely, 2^61311662 is an apocalyptic number.

61311662 is a deficient number, since it is larger than the sum of its proper divisors (30655834).

61311662 is a wasteful number, since it uses less digits than its factorization.

61311662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30655833.

The product of its digits is 1296, while the sum is 26.

The square root of 61311662 is about 7830.1763709383. The cubic root of 61311662 is about 394.3189932128.

Adding to 61311662 its reverse (26611316), we get a palindrome (87922978).

The spelling of 61311662 in words is "sixty-one million, three hundred eleven thousand, six hundred sixty-two".