999466015601 has 4 divisors (see below), whose sum is σ = 1000765712100. Its totient is φ = 998166319104.

The previous prime is 999466015477. The next prime is 999466015619. The reversal of 999466015601 is 106510664999.

999466015601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 106510664999 = 151969 ⋅700871.

It can be written as a sum of positive squares in 2 ways, for example, as 641833311025 + 357632704576 = 801145^2 + 598024^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-999466015601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (999466615601) 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, 649847096 + ... + 649848633.

It is an arithmetic number, because the mean of its divisors is an integer number (250191428025).

Almost surely, 2^999466015601 is an apocalyptic number.

It is an amenable number.

999466015601 is a deficient number, since it is larger than the sum of its proper divisors (1299696499).

999466015601 is a wasteful number, since it uses less digits than its factorization.

999466015601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299696498.

The product of its (nonzero) digits is 3149280, while the sum is 56.

The spelling of 999466015601 in words is "nine hundred ninety-nine billion, four hundred sixty-six million, fifteen thousand, six hundred one".