1516699970 has 8 divisors (see below), whose sum is σ = 2730059964. Its totient is φ = 606679984.

The previous prime is 1516699963. The next prime is 1516699973. The reversal of 1516699970 is 799966151.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1421968681 + 94731289 = 37709^2 + 9733^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1516699973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75834989 + ... + 75835008.

Almost surely, 2^1516699970 is an apocalyptic number.

1516699970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1516699970 is a deficient number, since it is larger than the sum of its proper divisors (1213359994).

1516699970 is a wasteful number, since it uses less digits than its factorization.

1516699970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151670004.

The product of its (nonzero) digits is 918540, while the sum is 53.

The square root of 1516699970 is about 38944.8323914740. The cubic root of 1516699970 is about 1148.9467281164.

The spelling of 1516699970 in words is "one billion, five hundred sixteen million, six hundred ninety-nine thousand, nine hundred seventy".