61335413947906 has 24 divisors (see below), whose sum is σ = 107035661876940. Its totient is φ = 26283751143552.

The previous prime is 61335413947853. The next prime is 61335413947909. The reversal of 61335413947906 is 60974931453316.

It can be written as a sum of positive squares in 2 ways, for example, as 57089584735225 + 4245829212681 = 7555765^2 + 2060541^2 .

It is not an unprimeable number, because it can be changed into a prime (61335413947909) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33079035 + ... + 34883998.

Almost surely, 2^{61335413947906} is an apocalyptic number.

61335413947906 is a deficient number, since it is larger than the sum of its proper divisors (45700247929034).

61335413947906 is a wasteful number, since it uses less digits than its factorization.

61335413947906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67972258 (or 67972251 counting only the distinct ones).

The product of its (nonzero) digits is 44089920, while the sum is 61.

The spelling of 61335413947906 in words is "sixty-one trillion, three hundred thirty-five billion, four hundred thirteen million, nine hundred forty-seven thousand, nine hundred six".