1016653561 has 8 divisors (see below), whose sum is σ = 1267516224. Its totient is φ = 792197520.

The previous prime is 1016653559. The next prime is 1016653643. The reversal of 1016653561 is 1653566101.

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

It is a cyclic number.

It is not a de Polignac number, because 1016653561 - 2¹ = 1016653559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1016653531) 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, 6601570 + ... + 6601723.

It is an arithmetic number, because the mean of its divisors is an integer number (158439528).

Almost surely, 2^1016653561 is an apocalyptic number.

1016653561 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1016653561 is a deficient number, since it is larger than the sum of its proper divisors (250862663).

1016653561 is a wasteful number, since it uses less digits than its factorization.

1016653561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13203311.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 1016653561 is about 31885.0052689348. The cubic root of 1016653561 is about 1005.5206533017.

The spelling of 1016653561 in words is "one billion, sixteen million, six hundred fifty-three thousand, five hundred sixty-one".