1061500066015 has 4 divisors (see below), whose sum is σ = 1273800079224. Its totient is φ = 849200052808.

The previous prime is 1061500065991. The next prime is 1061500066019. The reversal of 1061500066015 is 5106600051601.

1061500066015 is nontrivially palindromic in base 4.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1061500066015 - 2¹⁵ = 1061500033247 is a prime.

It is a super-2 number, since 2×1061500066015² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1061500066019) 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, 106150006597 + ... + 106150006606.

It is an arithmetic number, because the mean of its divisors is an integer number (318450019806).

Almost surely, 2^{1061500066015} is an apocalyptic number.

1061500066015 is a deficient number, since it is larger than the sum of its proper divisors (212300013209).

1061500066015 is an equidigital number, since it uses as much as digits as its factorization.

1061500066015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212300013208.

The product of its (nonzero) digits is 5400, while the sum is 31.

The spelling of 1061500066015 in words is "one trillion, sixty-one billion, five hundred million, sixty-six thousand, fifteen".