61220533814 has 64 divisors (see below), whose sum is σ = 104810250240. Its totient is φ = 26573339520.

The previous prime is 61220533763. The next prime is 61220533817. The reversal of 61220533814 is 41833502216.

It is a super-2 number, since 2×61220533814² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61220533817) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11122187 + ... + 11127689.

It is an arithmetic number, because the mean of its divisors is an integer number (1637660160).

Almost surely, 2^61220533814 is an apocalyptic number.

61220533814 is a deficient number, since it is larger than the sum of its proper divisors (43589716426).

61220533814 is a wasteful number, since it uses less digits than its factorization.

61220533814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5805.

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 61220533814 in words is "sixty-one billion, two hundred twenty million, five hundred thirty-three thousand, eight hundred fourteen".