1061166501015 has 16 divisors (see below), whose sum is σ = 1698521757696. Its totient is φ = 565737015200.

The previous prime is 1061166501013. The next prime is 1061166501029. The reversal of 1061166501015 is 5101056611601.

It is not a de Polignac number, because 1061166501015 - 2¹ = 1061166501013 is a prime.

It is a super-2 number, since 2×1061166501015² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1061166501013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13613091 + ... + 13690820.

It is an arithmetic number, because the mean of its divisors is an integer number (106157609856).

Almost surely, 2^{1061166501015} is an apocalyptic number.

1061166501015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1061166501015 is a deficient number, since it is larger than the sum of its proper divisors (637355256681).

1061166501015 is a wasteful number, since it uses less digits than its factorization.

1061166501015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27306510.

The product of its (nonzero) digits is 5400, while the sum is 33.

The spelling of 1061166501015 in words is "one trillion, sixty-one billion, one hundred sixty-six million, five hundred one thousand, fifteen".