1606801531816 has 32 divisors (see below), whose sum is σ = 3276003144960. Its totient is φ = 734400695232.

The previous prime is 1606801531789. The next prime is 1606801531837. The reversal of 1606801531816 is 6181351086061.

It is a super-2 number, since 2×1606801531816² (a number of 25 digits) contains 22 as substring.

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, 74989360 + ... + 75010783.

It is an arithmetic number, because the mean of its divisors is an integer number (102375098280).

Almost surely, 2^{1606801531816} is an apocalyptic number.

It is an amenable number.

1606801531816 is an abundant number, since it is smaller than the sum of its proper divisors (1669201613144).

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

1606801531816 is a wasteful number, since it uses less digits than its factorization.

1606801531816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150000265 (or 150000261 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 46.

The spelling of 1606801531816 in words is "one trillion, six hundred six billion, eight hundred one million, five hundred thirty-one thousand, eight hundred sixteen".