61335402499004 has 24 divisors (see below), whose sum is σ = 111102673730160. Its totient is φ = 29593008958464.

The previous prime is 61335402498983. The next prime is 61335402499031. The reversal of 61335402499004 is 40099420453316.

It is a super-2 number, since 2×61335402499004² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153239909 + ... + 153639644.

It is an arithmetic number, because the mean of its divisors is an integer number (4629278072090).

Almost surely, 2^{61335402499004} is an apocalyptic number.

It is an amenable number.

61335402499004 is a deficient number, since it is larger than the sum of its proper divisors (49767271231156).

61335402499004 is a wasteful number, since it uses less digits than its factorization.

61335402499004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306881309 (or 306881307 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 50.

The spelling of 61335402499004 in words is "sixty-one trillion, three hundred thirty-five billion, four hundred two million, four hundred ninety-nine thousand, four".