61535525020646 has 8 divisors (see below), whose sum is σ = 92303985804624. Its totient is φ = 30767529752440.

The previous prime is 61535525020637. The next prime is 61535525020649. The reversal of 61535525020646 is 64602052553516.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 61535525020594 and 61535525020603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61535525020649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116048285 + ... + 116577336.

It is an arithmetic number, because the mean of its divisors is an integer number (11537998225578).

Almost surely, 2^{61535525020646} is an apocalyptic number.

61535525020646 is a deficient number, since it is larger than the sum of its proper divisors (30768460783978).

61535525020646 is a wasteful number, since it uses less digits than its factorization.

61535525020646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232757886.

The product of its (nonzero) digits is 6480000, while the sum is 50.

The spelling of 61535525020646 in words is "sixty-one trillion, five hundred thirty-five billion, five hundred twenty-five million, twenty thousand, six hundred forty-six".