1465161651 has 24 divisors (see below), whose sum is σ = 2142582624. Its totient is φ = 964713600.

The previous prime is 1465161619. The next prime is 1465161653. The reversal of 1465161651 is 1561615641.

It is not a de Polignac number, because 1465161651 - 2⁵ = 1465161619 is a prime.

It is a super-2 number, since 2×1465161651² = 4293397327122091602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1465161653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 413650 + ... + 417176.

It is an arithmetic number, because the mean of its divisors is an integer number (89274276).

Almost surely, 2^1465161651 is an apocalyptic number.

1465161651 is a deficient number, since it is larger than the sum of its proper divisors (677420973).

1465161651 is a wasteful number, since it uses less digits than its factorization.

1465161651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4091 (or 4088 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 1465161651 is about 38277.4300469611. The cubic root of 1465161651 is about 1135.7825212999.

The spelling of 1465161651 in words is "one billion, four hundred sixty-five million, one hundred sixty-one thousand, six hundred fifty-one".