1016642215653 has 8 divisors (see below), whose sum is σ = 1359298785600. Its totient is φ = 675873561408.

The previous prime is 1016642215621. The next prime is 1016642215657. The reversal of 1016642215653 is 3565122466101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1016642215653 - 2⁵ = 1016642215621 is a prime.

It is a super-2 number, since 2×1016642215653² (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 (1016642215657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 471977668 + ... + 471979821.

It is an arithmetic number, because the mean of its divisors is an integer number (169912348200).

Almost surely, 2^{1016642215653} is an apocalyptic number.

It is an amenable number.

1016642215653 is a deficient number, since it is larger than the sum of its proper divisors (342656569947).

1016642215653 is an equidigital number, since it uses as much as digits as its factorization.

1016642215653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943957851.

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 1016642215653 in words is "one trillion, sixteen billion, six hundred forty-two million, two hundred fifteen thousand, six hundred fifty-three".