61820802192501 has 16 divisors (see below), whose sum is σ = 99912407584320. Its totient is φ = 37467152843760.

The previous prime is 61820802192473. The next prime is 61820802192533. The reversal of 61820802192501 is 10529120802816.

61820802192501 is a `hidden beast` number, since 6 + 18 + 20 + 8 + 0 + 21 + 92 + 501 = 666.

It is not a de Polignac number, because 61820802192501 - 2⁵ = 61820802192469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61820802191501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104075424270 + ... + 104075424863.

It is an arithmetic number, because the mean of its divisors is an integer number (6244525474020).

Almost surely, 2^{61820802192501} is an apocalyptic number.

It is an amenable number.

61820802192501 is a deficient number, since it is larger than the sum of its proper divisors (38091605391819).

61820802192501 is a wasteful number, since it uses less digits than its factorization.

61820802192501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208150849153 (or 208150849147 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 45.

The spelling of 61820802192501 in words is "sixty-one trillion, eight hundred twenty billion, eight hundred two million, one hundred ninety-two thousand, five hundred one".