61215101107 has 8 divisors (see below), whose sum is σ = 61380700992. Its totient is φ = 61049611200.

The previous prime is 61215101093. The next prime is 61215101131. The reversal of 61215101107 is 70110151216.

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

It is a cyclic number.

It is not a de Polignac number, because 61215101107 - 2²⁷ = 61080883379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61215101147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1155463 + ... + 1207279.

It is an arithmetic number, because the mean of its divisors is an integer number (7672587624).

Almost surely, 2^61215101107 is an apocalyptic number.

61215101107 is a deficient number, since it is larger than the sum of its proper divisors (165599885).

61215101107 is a wasteful number, since it uses less digits than its factorization.

61215101107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54989.

The product of its (nonzero) digits is 420, while the sum is 25.

The spelling of 61215101107 in words is "sixty-one billion, two hundred fifteen million, one hundred one thousand, one hundred seven".