1500661460661 has 32 divisors (see below), whose sum is σ = 2187649658880. Its totient is φ = 907463793600.

The previous prime is 1500661460659. The next prime is 1500661460663. The reversal of 1500661460661 is 1660641660051.

It is an interprime number because it is at equal distance from previous prime (1500661460659) and next prime (1500661460663).

It is not a de Polignac number, because 1500661460661 - 2¹ = 1500661460659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1500661460663) 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 31 ways as a sum of consecutive naturals, for example, 91601691 + ... + 91618071.

It is an arithmetic number, because the mean of its divisors is an integer number (68364051840).

Almost surely, 2^{1500661460661} is an apocalyptic number.

1500661460661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1500661460661 is a deficient number, since it is larger than the sum of its proper divisors (686988198219).

1500661460661 is a wasteful number, since it uses less digits than its factorization.

1500661460661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22417.

The product of its (nonzero) digits is 155520, while the sum is 42.

The spelling of 1500661460661 in words is "one trillion, five hundred billion, six hundred sixty-one million, four hundred sixty thousand, six hundred sixty-one".