61120515567 has 8 divisors (see below), whose sum is σ = 82710349696. Its totient is φ = 40138845912.

The previous prime is 61120515557. The next prime is 61120515587. The reversal of 61120515567 is 76551502116.

It is a happy number.

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

It is not a de Polignac number, because 61120515567 - 2¹⁸ = 61120253423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61120515557) 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, 152040883 + ... + 152041284.

It is an arithmetic number, because the mean of its divisors is an integer number (10338793712).

Almost surely, 2^61120515567 is an apocalyptic number.

61120515567 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

61120515567 is a deficient number, since it is larger than the sum of its proper divisors (21589834129).

61120515567 is a wasteful number, since it uses less digits than its factorization.

61120515567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304082237.

The product of its (nonzero) digits is 63000, while the sum is 39.

The spelling of 61120515567 in words is "sixty-one billion, one hundred twenty million, five hundred fifteen thousand, five hundred sixty-seven".