1465025661 has 12 divisors (see below), whose sum is σ = 2308525440. Its totient is φ = 887894280.

The previous prime is 1465025657. The next prime is 1465025671. The reversal of 1465025661 is 1665205641.

1465025661 is a `hidden beast` number, since 1 + 46 + 50 + 2 + 566 + 1 = 666.

It is not a de Polignac number, because 1465025661 - 2² = 1465025657 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1465025671) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7399021 + ... + 7399218.

It is an arithmetic number, because the mean of its divisors is an integer number (192377120).

Almost surely, 2^1465025661 is an apocalyptic number.

1465025661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1465025661 is a deficient number, since it is larger than the sum of its proper divisors (843499779).

1465025661 is a wasteful number, since it uses less digits than its factorization.

1465025661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14798256 (or 14798253 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 1465025661 is about 38275.6536325639. The cubic root of 1465025661 is about 1135.7473807305.

The spelling of 1465025661 in words is "one billion, four hundred sixty-five million, twenty-five thousand, six hundred sixty-one".