1071947616 has 48 divisors (see below), whose sum is σ = 2830754304. Its totient is φ = 355170944.

The previous prime is 1071947557. The next prime is 1071947621. The reversal of 1071947616 is 6167491701.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×1071947616² = 2298143382896166912, which contains 22 as substring.

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, 17400 + ... + 49463.

It is an arithmetic number, because the mean of its divisors is an integer number (58974048).

Almost surely, 2^1071947616 is an apocalyptic number.

1071947616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1071947616 is an abundant number, since it is smaller than the sum of its proper divisors (1758806688).

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

1071947616 is a wasteful number, since it uses less digits than its factorization.

1071947616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67043 (or 67035 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 42.

The square root of 1071947616 is about 32740.6111121952. The cubic root of 1071947616 is about 1023.4293186523.

The spelling of 1071947616 in words is "one billion, seventy-one million, nine hundred forty-seven thousand, six hundred sixteen".