1652218615945 has 8 divisors (see below), whose sum is σ = 2016266785920. Its totient is φ = 1299371928240.

The previous prime is 1652218615939. The next prime is 1652218615951. The reversal of 1652218615945 is 5495168122561.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1652218615939) and next prime (1652218615951).

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

It is not a de Polignac number, because 1652218615945 - 2⁵ = 1652218615913 is a prime.

It is a super-2 number, since 2×1652218615945² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2800370241 + ... + 2800370830.

It is an arithmetic number, because the mean of its divisors is an integer number (252033348240).

Almost surely, 2^{1652218615945} is an apocalyptic number.

It is an amenable number.

1652218615945 is a deficient number, since it is larger than the sum of its proper divisors (364048169975).

1652218615945 is an equidigital number, since it uses as much as digits as its factorization.

1652218615945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5600741135.

The product of its digits is 5184000, while the sum is 55.

The spelling of 1652218615945 in words is "one trillion, six hundred fifty-two billion, two hundred eighteen million, six hundred fifteen thousand, nine hundred forty-five".