1000061511646 has 4 divisors (see below), whose sum is σ = 1500092267472. Its totient is φ = 500030755822.

The previous prime is 1000061511623. The next prime is 1000061511679. The reversal of 1000061511646 is 6461151600001.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250015377910 + ... + 250015377913.

It is an arithmetic number, because the mean of its divisors is an integer number (375023066868).

Almost surely, 2^{1000061511646} is an apocalyptic number.

1000061511646 is a deficient number, since it is larger than the sum of its proper divisors (500030755826).

1000061511646 is an equidigital number, since it uses as much as digits as its factorization.

1000061511646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500030755825.

The product of its (nonzero) digits is 4320, while the sum is 31.

The spelling of 1000061511646 in words is "one trillion, sixty-one million, five hundred eleven thousand, six hundred forty-six".