1016661042 has 48 divisors (see below), whose sum is σ = 2347488000. Its totient is φ = 317249856.

The previous prime is 1016660989. The next prime is 1016661043. The reversal of 1016661042 is 2401666101.

It is a junction number, because it is equal to n+sod(n) for n = 1016660997 and 1016661015.

It is not an unprimeable number, because it can be changed into a prime (1016661043) 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, 6667 + ... + 45582.

It is an arithmetic number, because the mean of its divisors is an integer number (48906000).

Almost surely, 2^1016661042 is an apocalyptic number.

1016661042 is an abundant number, since it is smaller than the sum of its proper divisors (1330826958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1016661042 is a wasteful number, since it uses less digits than its factorization.

1016661042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52327 (or 52324 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1016661042 is about 31885.1225809154. The cubic root of 1016661042 is about 1005.5231196553.

The spelling of 1016661042 in words is "one billion, sixteen million, six hundred sixty-one thousand, forty-two".