61659753403 has 2 divisors, whose sum is σ = 61659753404. Its totient is φ = 61659753402.

The previous prime is 61659753373. The next prime is 61659753469. The reversal of 61659753403 is 30435795616.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61659753403 - 2²¹ = 61657656251 is a prime.

It is not a weakly prime, because it can be changed into another prime (61659750403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30829876701 + 30829876702.

It is an arithmetic number, because the mean of its divisors is an integer number (30829876702).

Almost surely, 2^61659753403 is an apocalyptic number.

61659753403 is a deficient number, since it is larger than the sum of its proper divisors (1).

61659753403 is an equidigital number, since it uses as much as digits as its factorization.

61659753403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2041200, while the sum is 49.

The spelling of 61659753403 in words is "sixty-one billion, six hundred fifty-nine million, seven hundred fifty-three thousand, four hundred three".