1965015501 has 16 divisors (see below), whose sum is σ = 2643683328. Its totient is φ = 1298203200.

The previous prime is 1965015491. The next prime is 1965015529. The reversal of 1965015501 is 1055105691.

It is not a de Polignac number, because 1965015501 - 2¹⁰ = 1965014477 is a prime.

It is a super-2 number, since 2×1965015501² = 7722571838340562002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1965015541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 401811 + ... + 406671.

It is an arithmetic number, because the mean of its divisors is an integer number (165230208).

Almost surely, 2^1965015501 is an apocalyptic number.

It is an amenable number.

1965015501 is a deficient number, since it is larger than the sum of its proper divisors (678667827).

1965015501 is a wasteful number, since it uses less digits than its factorization.

1965015501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6052.

The product of its (nonzero) digits is 6750, while the sum is 33.

The square root of 1965015501 is about 44328.4953613361. The cubic root of 1965015501 is about 1252.5315099184.

The spelling of 1965015501 in words is "one billion, nine hundred sixty-five million, fifteen thousand, five hundred one".