15846046000644 has 12 divisors (see below), whose sum is σ = 36974107334864. Its totient is φ = 5282015333544.

The previous prime is 15846046000639. The next prime is 15846046000649. The reversal of 15846046000644 is 44600064064851.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (15846046000639) and next prime (15846046000649).

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 15846046000593 and 15846046000602.

It is not an unprimeable number, because it can be changed into a prime (15846046000649) 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, 660251916682 + ... + 660251916705.

Almost surely, 2^{15846046000644} is an apocalyptic number.

It is an amenable number.

15846046000644 is an abundant number, since it is smaller than the sum of its proper divisors (21128061334220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15846046000644 is a wasteful number, since it uses less digits than its factorization.

15846046000644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320503833394 (or 1320503833392 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 48.

The spelling of 15846046000644 in words is "fifteen trillion, eight hundred forty-six billion, forty-six million, six hundred forty-four", and thus it is an aban number.