6161640535 has 8 divisors (see below), whose sum is σ = 7422740496. Its totient is φ = 4910131200.

The previous prime is 6161640521. The next prime is 6161640547. The reversal of 6161640535 is 5350461616.

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

It is not a de Polignac number, because 6161640535 - 2⁵ = 6161640503 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6161640494 and 6161640503.

It is a congruent number.

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, 2396241 + ... + 2398810.

It is an arithmetic number, because the mean of its divisors is an integer number (927842562).

Almost surely, 2^6161640535 is an apocalyptic number.

6161640535 is a deficient number, since it is larger than the sum of its proper divisors (1261099961).

6161640535 is a wasteful number, since it uses less digits than its factorization.

6161640535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4795313.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 6161640535 is about 78496.1179613362. The cubic root of 6161640535 is about 1833.2940099738.

The spelling of 6161640535 in words is "six billion, one hundred sixty-one million, six hundred forty thousand, five hundred thirty-five".